PERFORMANCE OF FLOOD CONTROL WORKS AROUND DHAKA CITY DURING MAJOR FLOODS IN BANGLADESH (original) (raw)

Dhaka city has been protected by flood protective embankments, flood walls and raised roads along with flood controlling regulators, sluices, and both temporary and permanent pump houses. This study describes the performance of various flood control works around Dhaka city and tries to find out the causes of external and internal flooding of protected Dhaka during major floods in the recent past. It has been found that flood embankment and raised road around the city functioned quite well during all floods except the1998 flood. Though the performances of three permanent pump stations were found satisfactory, temporary pumps were found poor performing. However, the flood control measures of the city has come under challenge by recent issues such as gradual increase of urban encroachments inside retention pond, fill up of low lying areas, increase of social conflicts around flood control structures etc.